In my answer to a question about regex's I put this language element in my markdown:

<!-- language: lang-regex -->
[^;]+=(?<val>[^;]*)

This rendered as the crimson text we typically see as the default in Visual Studio for strings. I had expected something a bit more sensitive to regex's language elements (e.g. quantifiers, groupings, literals, etc.).

Are there any plans to change this or is there a different (better) language element that can be used?

Perhaps someone could contrib an update to the Google Prettyfier so SE can benefit?